The two speed rear axle electric shift system includes the following parts:
| • | A control switch |
| • | A speedometer adapter assembly |
| • | A shift motor assembly |
| • | A relay |
| • | A wiring harness |
Control Switch
The control switch is mounted in the instrument panel.
The driver positions the control switch in order to operate the two speed rear axle shift motor assembly.
The driver selects the axle speed by pushing the control switch to the LOW or the HIGH axle range.
Relay
The relay is mounted to the crossmember in front of the rear axle.
When the control switch is in the HIGH range, a ground is supplied to the relay. This condition actuates the shift motor to the HIGH range.
When the control switch is returned to the LOW range, the relay is de-energized. This condition returns the shift motor to the LOW range.
Shift Motor Assembly
The shift motor assembly (6) is mounted on the differential carrier assembly (3).
The motor shifts the axle into the LOW or the HIGH range position.
Speedometer Adapter Assembly
The speedometer adapter assembly matches the ratio of the speedometer to the ratio of the rear axle.
The speedometer adapter assembly gives an accurate speedometer reading when the axle is shifted from one ratio to the other.
The speedometer adapter assembly is electrically connected to the control switch.
When the control switch is placed in the LOW position, an electrical signal changes the speedometer adapter assembly to the LOW ratio in order to match the rear axle.
When the control switch is placed in the HIGH position, the electrical signal is removed and the speedometer adapter assembly reads the HIGH ratio of the rear axle.
